import logging
from redis import StrictRedis


class Config(object):
    # 项目配置
    DEBUG = True
    SECRET_KEY="zgXZM2e1P6wqj+9gFuBnrOlgeKuLio4Z2mxdiGI8W3NRANnZiiwcOjBx4/wHD8nV"
    SQLALCHEMY_DATABASE_URI = "mysql://root:mysql@127.0.0.1:3306/news"
    #设置数据库跟踪
    SQLALCHEMY_TRACK_MODIFICATIONS = False
    # 在请求结束时候，如果指定此配置为 True ，那么 SQLAlchemy 会自动执行一次 db.session.commit()操作
    SQLALCHEMY_COMMIT_ON_TEARDOWN = True

    # Redis配置
    REDIS_HOST='127.0.0.1'
    REDIS_PORT=6379
    # Session保存配置
    SESSION_TYPE='redis'
    # 开启session签名
    SESSION_USE_SIGNER=True
    # 指定session保存的redis
    SESSION_REDIS=StrictRedis(host=REDIS_HOST,port=REDIS_PORT)
    # 设置需要过期
    # SESSION_PERMANENT=False
    # 设置过期时间
    PERMANENT_SESSION_LIFETIME=86400

class DevelopmentConfig(Config):
    # 开发环境下配置
    DEBUG = True
    #记录日志的等级
    LOG_LEVEL = logging.DEBUG

class ProductionConfig(Config):
    # 生产环境下配置
    DEBUG = False
    LOG_LEVEL = logging.WARNING
    # 生产环境下数据库配置
    # SQLALCHEMY_DATABASE_URI = "mysql://root:mysql@xxx.xxx.xxx:xxx/news"
class TestingConfig(Config):
    # 单元测试环境下配置
    DEBUG = True
    TESTING=True

config={'development':DevelopmentConfig,
        'production':ProductionConfig,
        'testing':TestingConfig}